IE20050636U1 - Method of and apparatus for manufacturing felt coated metal sheeting - Google Patents
Method of and apparatus for manufacturing felt coated metal sheetingInfo
- Publication number
- IE20050636U1 IE20050636U1 IE2005/0636A IE20050636A IE20050636U1 IE 20050636 U1 IE20050636 U1 IE 20050636U1 IE 2005/0636 A IE2005/0636 A IE 2005/0636A IE 20050636 A IE20050636 A IE 20050636A IE 20050636 U1 IE20050636 U1 IE 20050636U1
- Authority
- IE
- Ireland
- Prior art keywords
- felt
- sheet
- roll
- coated metal
- heat
- Prior art date
Links
- 239000002184 metal Substances 0.000 title claims abstract description 41
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 239000000853 adhesive Substances 0.000 claims abstract description 6
- 230000001070 adhesive Effects 0.000 claims abstract description 6
- 238000005096 rolling process Methods 0.000 claims description 4
- 229920002456 HOTAIR Polymers 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Abstract
ABSTRACT The apparatus (10) for manufacturing felt coated metal sheeting comprises a sheet metal uncoiler (20), a felt applicator (30), roll formers (40), a guillotine (50, a transfer conveyor (60), a felt lap heat applicator (70) and a stacking conveyor 80 for finished product. The felt applicator (30), comprises a mobile frame (31) on which is mounted a cradle (32) for supporting a roll of felt (33). The felt is provided with an adhesive backing film (47) which is removed from the roll of felt (33) and wound onto a plastic backing take off roll (34). At the felt lap heat applicator (70) the end of the sheet is clamped and heat is applied to the lap end of the sheet to melt the felt at the lap end to remove its absorbency.
Description
LODGED g 1
METHOD AND APPARATUS FOR MANUFACTURING
FELT COATED METAL SHEETING
The present invention relates to a method of manufacturing felt coated metal sheeting and to
an apparatus for manufacturing felt coated metal sheeting. Metal sheeting of the type which
the invention relates to is used in the construction of roofs and side walls of buildings,
particularly non-insulated metal buildings, such as factories, farm buildings, sports halls and
the like.
In non-insulated metal buildings, as the outside air is cold and there is a warmer air and
humidity inside the building, condensation is created on the underside of the metal sheeting
resulting in droplets of water dripping down. To overcome the problem, a layer of felt material
is attached to one surface of the sheeting which is the inner surface in the building. The layer
of felt is attached to the metal sheeting during the manufacturing process. However the
current system of attaching a layer of felt to a sheeting is an expensive operation requiring
the use of complex equipment.
It is an object of the invention to provide a method and apparatus for attaching a layer of felt
to metal sheeting during manufacture which is simple and less expensive to implement.
A difficulty which arises with the use of felt coated metal sheeting is the end of the sheeting
can absorb a considerable amount of outside water, for instance when the end lap is in
contact with guttering and also on overlapped sections on roofs. To prevent this occurring it
is recommended to apply a 10cm strip of clear water-based varnish on the end lap side of
each metal sheet formed as part of the structure. This procedure must be done by the
installers by hand and depending on weather conditions and other factors may or may not be
done properly.
A further object of the invention is to provide a method and apparatus for treating the finished
product as part of the manufacturing process so as to obviate the need for treatment on the
construction site.
OPEN TO PUBLIC |llSPECTl0lll
UMBER SECTION 28 AND RULE 23
The present invention provides a method of manufacturing felt coated metal sheeting, the
method comprising unrolling a sheet of felt from a roll of felt, removing a backing film from the
felt to expose an adhesive layer, rolling the backing film onto a separate take up roll and
applying the layer of felt to a metal sheet as it is being unrolled from a coil of sheet metal.
The present invention also provides an apparatus for manufacturing felt coated metal
sheeting, the apparatus comprising means for unrolling a sheet of felt from a roll of felt,
means for removing a backing film for the felt to expose an adhesive layer, means for rolling
the backing film onto a separate take up roll and means for applying the layer of felt to a
metal sheet as it is being unrolled from a coil of sheet metal.
The present invention also provides a method of manufacturing felt coated metal sheeting,
the metal comprising clamping one end of a formed and felt coated metal sheet to expose a
short lap end and applying heat to the exposed lap end to melt the felt coat.
The present invention also provides an apparatus for manufacturing felt coated metal
sheeting, the apparatus comprising means for clamping one end of a fon'ned and felt coated
sheet to expose a short lap end and means for applying heat to the exposed lap end to melt
the felt coat.
The heat may be taken from a number of heat sources such as gas burners, electric heaters
and hot air appliances.
Ideally, the clamping means and heat applicator means are mounted on a moveable carriage.
The invention will hereinafter be more particularly described with reference to the
accompanying drawings which show, by way of example only, one embodiment of apparatus
for manufacturing felt coated metal sheeting according to the invention. In the drawings:
Figure 1 is a schematic side view of the apparatus in which the product flow goes from right
to left from a sheet metal uncoiler, a felt applicator, a roll former, a guillotine, a transfer
conveyor, a felt lap heat applicator and to a stacking conveyor;
lEO50636
Figure 2 is a perspective view of the felt applicator; and
Figure 3 is a perspective view of the felt lap heat applicator.
Referring to the drawings, the apparatus 10 for manufacturing felt coated metal sheeting
comprises a sheet metal uncoiler 20, a felt applicator 30, roll formers 40, a guillotine 50, a
transfer conveyor 60, a felt lap heat applicator 70 and a stacking conveyor 80 for finished
product.
To commence the manufacturing process. a roll of steel sheeting 22 is mounted on the
uncoiler 20 and the sheeting is fed through the felt applicator 30. Referringto Figure 2, the
felt applicator 30, oomprises a mobile frame 31 on which is mounted a cradle 32 for
supporting a roll of felt 33. The felt is provided with an adhesive backing which allows the felt
to adhere to the metal sheet 24 being uncoiled from the uncoiler 20. However before the felt
can adhere to the metal sheeting 24, it is necessary to first remove a backing film 47. In the
present invention, the film 47 is removed from the roll of felt 33 and wound onto a plastic
backing take off roll 34. The plastic backing film 47 is guided through three guide rollers 35,
36 and 37. To compensate for the difference in speeds between the roll of felt 33 and the roll
of sheet steel 22, an accumulator 38 is provided between the guide rollers 36 and 37 to take
up the difference between the two rolls. The accumulator 38 includes a pivotally mounted
contact lever 39a and an on/off switch 39b. When the control lever 39a contacts the switch
39b at contact point 39c the motor 34a on the take up roller 34 is operated to turn the roller to
take off more backing film. When the contact lever 39a breaks contact with the switch brake
39b, the motor 34a stops rotating the take up roller 34. For safety reasons, a separate brake
45 is provided on the cradle 32 which acts against the disc 46 of the roll 33. Also for safety
reasons an emergency stop 47 is provided on the felt applicator.
The metal sheet 24 with the felt 33a attached now goes through roll formers 40 to fonn the
desired shape. The formed length of sheeting is cut to the required length by the guillotine 50
which moves at the speed of the line thus forming a flying guillotine 50. After being cut. the
formed sheet with felt attached is deposited on the transfer conveyor 60 for the next stage of
the process.
lE050636
The final stage of the manufacturing process takes place at the felt lap heat applicator 70
where heat is applied to the lap end of the sheet to melt the felt at that end thereby removing
the absorbency of the felt. Referring to Figure 3, the applicator 70 comprises a moveable
frame 71 mounted on roller wheels 85 which enable the applicator to move at the same
speed as the formed sheet is being deposited on the line. Mounted on the frame 71 are five
clamps 72 which are operable by means of actuators 73 which bring the clamps 72 into
engagement with profile holder 74 and therefore hold the formed sheet in relation to the
frame 71 for the application of heat from the eight gas burners 75 which apply flame to the
exposed end of the sheet extending from beyond the clamps 72. The gas is supplied to the
burners 75 from a gas supply pipe 76 which feeds into a gas manifold 77. Each burner 75 is
provided with its own ignition system. A photoelectric cell 78 is provided on the profile holder
74 and detects when the sheet metal is approaching. A switch 79 when hit by the formed
sheet activates the clamping system. After the heat is applied for the required time, typically
1-2 seconds. the clamps 72 are released and the completed sheeting is conveyed to the
stacking conveyor. The heat generated by the burners 75 is in the range of 40°C to 50°C.
This temperature only melts the felt, does not cause it to burn and also does not do any
damage to the paint on the other side of the sheet.
It is to be understood that the invention is not limited to the specific details described above
which are given by way of example only and that various modifications and alterations are
possible without departing from the scope of the invention as defined in the attached claims.
Claims (5)
1. A method of manufacturing felt coated metal sheeting. the method comprising unrolling a sheet of felt from a roll of felt, removing a backing film from the felt to expose an adhesive layer, rolling the backing film onto a separate take up roll and applying the layer of felt to a metal sheet as it is being unrolled from a coil of sheet metal, the method comprising clamping one end of a formed and felt coated metal sheet to expose a short lap end and applying heat to the exposed lap end to melt the felt coat.
2. An apparatus for manufacturing felt coated metal sheeting, the apparatus comprising means for unrolling a sheet of felt from a roll of felt, means for removing a backing film for the felt to expose an adhesive layer, means for rolling the backing film onto a separate take up roll and means for applying the layer of felt to a metal sheet as it is being unrolled from a coil of sheet metal, the apparatus comprising means for clamping one end of a formed and felt coated sheet to expose a short lap end and means for applying heat to the exposed lap end to melt the felt coat.
3. An apparatus as claimed in Claim 2, in which the heat is taken from a number of heat sources such as gas burners, electric heaters and hot air appliances and optionally in which the clamping means and heat applicator means are mounted on a moveable carriage.
4. A method of manufacturing felt coated metal sheeting substantially as herein described with reference to the accompanying drawings.
5. Apparatus for manufacturing felt coated metal sheeting substantially as herein described with reference to, and as shown in the accompanying drawings. MACLACHIAN & DONALDSON Applicants Agents
Publications (2)
Publication Number | Publication Date |
---|---|
IES84340Y1 IES84340Y1 (en) | 2006-09-20 |
IE20050636U1 true IE20050636U1 (en) | 2006-09-20 |
Family
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